Welcome to Creswell, Oregon. Incorporated in 1909 Creswell is known as one of the friendliest cities in Oregon. Creswell is a city in the Willamette Valley of Lane County, Oregon, United States.   Creswell is also notable for annual events such as its spectacular Fourth of July Celebration, which draws spectators from all over the state, as well as a wonderful Holiday Tree Lighting Celebration for the entire community in early-December.